Means for cleaning, scaling, or chipping surfaces



Oct-'13, 1925- w. B. WRIGHT MEANS FOR CLEANING, SCALING, OR CHIPPINGSURFACES 'Filed Marbh 29, 1923 I 277652201 M'ZZz'amZrzzce 21/173750Patented Qct. 13, 1925,.

UNITED STATES WILLIAM Bacon wmenr, or mvniaroot, ENGLAND.

MEANS FOR CLEANING, soanme on CHIPPING SURFACES.

Application filed March 29, 1923. Serial No. 628,673.

To all whom it may concern:

Be it known that WILLIAM BRUCE WRIGHT, of 75 Merton Road, Bootle, Liven001, England, whose residence is 7 5 Merton Itoad, Bootle, Liverpool,England, and a subject of the King of Great Britain and Ireland, hasinvented certain new and useful Improvements in Means for. Cleaning,Scal-- ing, or Chipping Surfaces, of which the folowing is aspecification.

This invention has for its object to provide a light, compact -and.portable machine ada ted for cleaning,iscaling, or chipping surfaces,the machine being suitable for operation by electric, pneumatic,mechanical or other power.

The improved apparatus forming the subject matter of the presentinvention comprises a rotary shaft adapted to receive and drive a rotarymember or hammer haying striker projections adapted to act upon areciprocating tool for operating upon the surface under treatment, acasing within which said rotary member and tool are mounted, said casinghaving guide means in which the bearings of the shaft are supported in amanner allowing slight movement of the shaft towards and from thesurface operated upon.

The rotary shaft may be coupled to an electric motor or a pneumaticmotor attached to the apparatus and controlled by a, local switch orvalve or may be connected with a flexible drive shaft transmitting powerfrom a relatively fixed source.

The invention is hereinafter more fully described with reference to theaccompanying drawings in which igs. 1 and 2 are respectively a sideelevation partly in section and an end sectional elevation of a toolconstructed according to this invention.

The improved tool com rises a casing a with a pair of parallel guide wes 0 in its 0 posite sides in which the ball earings d o a shaft e aremounted and presse by springs f in the direction of the reciprocating m17). Deta-chably fitted within a ho]- low neck 0 on the casing is asleeve 0 formmg a guide for projections g which and holds its head 9 inthe path of the strikers 9 For facilitating the assembly of the parts orthe removal of the shaft e, bearings (23 and rotating member'g from thecasin the guide Ways 0 are open attheir upper ends but normally closedby a detachable cover plate a secured by screws in the head of thecasing.

A laterally disposed tubular handle (not shown) may be attached to thecasing and enclose the connection of the shaft e with the flexibledriving shaft as previously referred to.

If preferred the tool may be operated by an electric or pneumatic motorattached to the casing'itself and coupled directl to the shaft e, themotor being supplied wit power by flexible leads or by a pipe.

I claim,

Apparatus for cleaning, scaling or chipping surfaces comprising acasing, parallel guide ways in the sides of the casing, bearings mountedin the guide ways, cushioning springs arranged to act on the bearings, arotary shaft mounted in the bearings, a rotary hammer mounted on theshaft and actuated thereby, resiliently supported in the casing in thepath of the hammer.

In testimony whereof he has aflixed his signature.

WILLIAM BRUCE WRIGHT.

the reciprocating tool p whilethe driving shaft e carries the rotaryhamand a reciprocating tool

